diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c3b22d4..179c395 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -51,6 +51,7 @@ jobs:
         - "3.0"
         - "3.1"
         - "3.2"
+        - "3.3"
       fail-fast: false
     steps:
     - name: Install HAProxy ${{ matrix.haproxy-versions }}.